If xi = i / 5 + 2, where i = 1, 2,..., 5, then the mean of x1, x2, ..., x5 is:
2.6
The values of x1, x2, ..., x5 are: 2.2, 2.4, 2.6, 2.8, and 3. The mean is (2.2 + 2.4 + 2.6 + 2.8 + 3) / 5 = 2.6.
The ______ is an unbiased estimator of the population mean.
The Contingency table in statistics is one:
The ______ is an unbiased estimator of the population mean.